William Blake (1926). “Preface. General introduction index of symbols. Appendices: The book of Thel. Tiriel. Notes to Reynolds's Discourses. Descriptive catalogue of pictures. 1809. Prose from the Rossetti ms. Table of substituted capitals. Index to foot-notes, &c”, Oxford University Press
William Blake, Robert N. Essick, Joseph Viscomi (1998). “Milton a Poem, and the Final Illuminated Works: The Ghost of Abel, On Homers Poetry, [and] On Virgil, Laocoön”, p.221, Princeton University Press